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/*
* tqueue.h --- task queue handling for Linux.
*
* Modified version of previous incarnations of task-queues,
* written by:
*
* (C) 1994 Kai Petzke, wpp@marie.physik.tu-berlin.de
* Modified for use in the Linux kernel by Theodore Ts'o,
* tytso@mit.edu.
*/
#ifndef _LINUX_TQUEUE_H
#define _LINUX_TQUEUE_H
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/bitops.h>
#include <asm/system.h>
struct tq_struct {
struct list_head list; /* linked list of active tq's */
unsigned long sync; /* must be initialized to zero */
void (*routine)(void *); /* function to call */
void *data; /* argument to function */
};
/*
* Emit code to initialise a tq_struct's routine and data pointers
*/
#define PREPARE_TQUEUE(_tq, _routine, _data) \
do { \
(_tq)->routine = _routine; \
(_tq)->data = _data; \
} while (0)
/*
* Emit code to initialise all of a tq_struct
*/
#define INIT_TQUEUE(_tq, _routine, _data) \
do { \
INIT_LIST_HEAD(&(_tq)->list); \
(_tq)->sync = 0; \
PREPARE_TQUEUE((_tq), (_routine), (_data)); \
} while (0)
#define DECLARE_TASK_QUEUE(q) LIST_HEAD(q)
/* Schedule a tq to run in process context */
extern int schedule_task(struct tq_struct *task);
/* finish all currently pending tasks - do not call from irq context */
extern void flush_scheduled_tasks(void);
#endif
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